Mississippi lawmakers are proposing a disclaimer on textbooks discussing evolution "This textbook discusses evolution, a controversial theory some scientists present as a scientific explanation for the origin of living things. No one was present when life first appeared on earth. Therefore, any statement about life's origins should be considered a theory," http://www.christianpost.com/Educat...mer-proposed-for-miss-textbooks-20/index.html Perhaps this reasonable approach and should be extended to other areas ? This electrical substation outlet contains 17KV electricity - however this is only a theory and no one has ever seen an electron so you should use your faith to decide if whether to touch. Gravity is only a theory and elements are refuted by general relativity so you should decide if you need a safety railing on this bridge.